H3DScriptNode.h

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//    Copyright 2004-2019, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    H3D API is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __H3DSCRIPTNODE_H__
#define __H3DSCRIPTNODE_H__
 
#include <H3D/X3DChildNode.h>
#include <H3D/X3DUrlObject.h>
#include <H3D/DEFNodes.h>
 
namespace H3D {
 
  struct H3DAPI_API H3DScriptNode : public X3DChildNode,
                                    public X3DUrlObject {
    
    // Constructor
    H3DScriptNode( Inst< MFString > _url = 0 );
    
    ~H3DScriptNode();
 
    // Standard node functions:
    // Script interfacing functions, implemented as pure virtuals, to
    // be implemented for each specifc scripting language
    
    virtual bool initialiseParser() { 
      name = getInstanceName();   
      return true;
    };
 
    virtual string getInstanceName() {
      ostringstream namestr;
      namestr << "H3DScriptNode_" << this; 
      return namestr.str();     
    };
    
    virtual void loadScript( const string &script_filename, const string &script_content= "" )= 0;
    
    virtual Field* lookupField( const string &_name ) const = 0;
 
    void addNamedNodes( X3D::DEFNodes *dn );
 
    void addNamedNode( const string &_name, Node *n );
 
    int removeNamedNode( const string &_name );
 
    void clearNamedNodes();
 
    Node *getNamedNode( const string &_name );
    
    static H3DNodeDatabase database;
  protected:
    typedef std::map< string, Node * > NamedNodes;
    NamedNodes named_nodes;
 
    // Callback for removing named nodes when the nodes are destructed.  
    static void removeNamedNodeCB( Node *n, void *data );
  };
}
 
#endif